Bucket.



H. S. ATKINSON.

BUCKET.

APPLICATION FILED JUNE 3, 1908.

Patented Feb. 16, 1915.

2 SHEETS-SHEET 1.

INVEN T0!) My WITNESSES A TTORNEYS THE NORRIS PETERS C0,. FHOTO LITHOHWASHING FUN. D. C

r H. S. ATKINSON."

BUCKET.

APPLICATION FILED JUNE 3, 1908.

1, 1 2&398, Patented Feb. 16, 1915.

I '2 SHEETS-SHEET 2.

WITNESSES 1 INVENTUII &

I nrranmsrs HERBERT S. ATKINSON, OF WEEI-IAWKEN, NEW JERSEY, ASSIG-NORTO THE I-IAY WARD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEWYORK.

BUCKET.

Application filed June 3, 1908.

To all whom it may concern Be it known that I, HERBERT S. ATKINSON, acitizen of the United States, and a resident of the town of l/Veehawken,county of I-Iudson, and State of New Jersey, have invented certain newand useful Improvements in Buckets, of which the following is aspecification.

This invention relates to certain novel and useful improvements inbuckets, and has particular application to a structure of the classdescribed, pertaining especially to use in connection with dredging,excavating and loading buckets. In the present instance, by way ofillustration, I have shown my invention as employed in connection with aclamshell bucket of the well known F Hayward type, but I wish it to beunderstood that the invention is not limited to the particularapplication which, for the purpose of illustration, I have hereindelineated.

In the present instance it is one of my purposes to provide a rope guardso located and installed relative to the remainder of the bucket thatwhile it will guide and protect the operating ropes of the bucket, itwill not in any way interfere with the action of the operating chains orcables, by which the power wheel and power shaft are actuated.

Still another purpose of the invention is to so arrange the guard thatit may rise and fall with the closing and opening of the bucket withoutin any way interfering with the operating of the bucket or with the loadcarried thereby. V

A further purpose of this invention is to provide a novel form andarrangement of braces for the'bucket sections whereby the upper end ofthe parts known as the blade arms, or that portion receiving the powerwheel shaft, is reinforced and strengthened,

at the'same time provides for a positive connection for the rope guardframe.

' The invention consistsin the construction, combination and arrangementof parts set forth'in and falling within the scope of the appendedclaims. p Referring now to the accompanying drawings in detail, Figure 1is a side elevation of a bucket provided with my improved form of ropeguard. In said view the full lines show the bucket in its closedposition while the dotted lines show the-bucket in its open positionready to grab a load; Fig. 2, is an end View of the bucket; Fig. 3 is aface new vother suitable locking means.

Specification of Letters Patent. Patented Feb. 16, 1915,

Serial No.436,34=0.

showing the power wheel with my improved rope guard around the same;Fig. 4 is an edge v1ew of said power wheel; Fig. 5 is a r'ron.

view taken on the line 55 of Fig. 3; Fig. 6

is a detail perspective view of one ofthe spider arms ofthe guard andshowing the arm secured to a cross bar, this being the means by whichthe guard is mounted relative to the bucket; Fig. 7 isv a detail view ofthe guard itself.

Referring now to the accompanying drawings in detail, A designates thebucket as an entirety, in the present instance the bucket being ofclam-shell form and comprising I the two sections 5, 5 pivoted togetherby means of the power shaft 6, said shaft carrying the power wheel 7 v II The operating chains of the bucket are in.

dicated at 8, 8 said chains being wrapped i about the hub of the powerwheel and are upon opposite sides of saidwheel.

9, 9 and 10, 1O designatethe diagonal arms of the bucket frame pivotallysupported on the shaft or .pintle 11 beneath the hood bearing 12.

13 is the hoisting rope and 14 is the opening and closing rope of thebucket.

15, 15 and 16, 16 designate the braces of the bucket section. It will benoted that the lower diagonal braces 16 extend from the blade arms 5 ofthe bucket sections down to approximately the center of the upper edgeof the bucket section, said braces 16 forming a support for thecrossbrace a carrying the rope guard B. The diagonal braces 16 and theinclined braces 15 are bolted together at their point of junction, thewhole forming a compact, powerful support for the bucket sections, atthe same time the braces at one section carrying the cross brace aprovide a firm support for the. rope guard.

in detail in Figs..3, 1 and 7 comprises, in the preferred form shown inFigs. 3 and .4,- a hub member 17 formed of two sections 18, 18 pivotedtogether at 19, each of said sections being provided. with an extendinglug The rope guardB, wh'ch is shown more 20 which, when the hub isclampedloosely about the hub of the power wheel, maybelocked or securedtogether by bolts 21, or

i It will be observed by reference to Figs. 2 and 4 that the hubmemberis duplicated; that is to say, one of such hubs is located uponeach sideofthe-wheel, and'each huh m. is mended being adapted to havebolted or otherwise secured thereto, one member of the double or loopedarm 23, the opposite member of the double arm extending around the wheeland being bolted to the opposite lug of the other hub section. At thepoint where the arm loops or passes over the periphery of the wheel Isecure a suitable rope shoe 24, so that the operation of the operatingrope around the periphery of the power wheel rope is suitably confinedand guided and at the same time a suitable wearing surface is alsoprovided. Furthermore, the form, position and arrangement of the shoes2% are important features of my invention. In the first place, it willbe seen that the shoe is relatively short in extent, as compared to theperiphery of the power wheel; also, its inner'surface is curved toconform to an arc or a portion of the curved periphery of the powerwheel or its groove, the construction and arrangement being such thatwhen the bucket is fully opened and the power wheel stops rotating, theslack that then occurs, to a greater or less degree, in the rope will betaken up by the several shoes on the guard arms, the slack rope normallyforming a series of short loops projecting respectively between adjacentsets of guard arms, for

as the guard shoes project within the groove or score of the wheel, theyafford frictional surfacescontacting with the rope, and while theypermit the movement of the rope longitudinally through the spacesbetween the respective shoes and the inner surface of the power wheelgroove, they also act, in a sense, as brakes for the prevention of toorapid movement of the rope, which has heretofore been a source oftrouble, through tangling of the rope, frequently causing stoppage ofthe work. As heretofore stated, the rope guard is secured to the crossbrace a, which brace is carried by one of the sections of the bucket sothat when the bucket is opened and the power wheel with its adjacentparts lowered, as is shown in dotted lines in Fig. 1, the guard willswing therewith, so that the periphery of the power wheel would strikethe load first before the guard and at the same time when the bucket isclosed the guard will be turned out of the way of the free part of theline, as shown in full lines in Fig. 1. It will be readily appreciatedthat when the bucket begins the opening movement from the closedposition (indicated in full lines in Fig. 1), as the rope 14 isattachedto the power wheel, there will be a weight or pull on the rope so thatthe rope will require substantially no guarding during the early part ofthe opening movement. Howeven when the bucket reaches the fully openposition, (as shown in dotted lines in Fig; 1') and the power wheelcomes to a stop the f rope' requires 1 very efiicient guarding,

and, as illustrated herein, in the position assumed by the guard at thisparticular moment, it is most effective to take care of the slack, ashereinbefore stated, at which time, the guard arm shown at the lowerrighthand side of the wheel in full lines in Fig. 1, takes the positionshown at the upper righthand side of the wheel in dotted lines in saidFig. 1, and in this position it remains until, in the closing operation,the slack of the rope is taken up, when the closing movement of thepower wheel begins.

In Fig. 7 I have shown a slightly modified form of rope guard or spider,in this case, instead of hinging the two sections of the hub together,as is shown in Fig. 3, I provide each section with the extending lugs20, 20 which are bolted together. The construction of the radiating arms23 is the same as shown in Fig. 3.

One advantage of forming the guard or spider in two sections is that itmay be reaolily removed from the bucket without in ny manner interferingwith the mechanism or without rendering it necessary to detach ordismember any other parts of the bucket.

While I have herein shown one embodiment of my invention, I wish it tobeunderstood thatl do not limit myself to the pro cise details ofconstruction herein delineated, but that variation and modification maybe made without departing from the spirit of my invention and withoutexceeding the scope of my claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. In a clam shell bucket, the combination of aplurality of bowl sections, means for opening and closing said bowlsections, including a power wheel and shaft therefor, rope-guardsupporting means carried by one only of the bowl sections, and a ropeguard secured to said supporting means, comprising a plurality of hubmembers on opposite sides of said power Wheel and having limited rotarymovement about said shaft, and a plurality of shoe-carrying armsconnected to, and connecting, said hub members, and adapted to span theperiphery of said power wheel.

2. In a clam shell bucket, the combination of a plurality of bowlsections, means for opening and closing said bowl sections, including apower wheel and shaft therefor, rope guard supporting means carried byone only of the bowl sections, and a rope guard secured to saidsupporting means, comprising a plurality of hub members on oppositesides of said power wheel and having limited rotary movement aboutsaidshaft, a plurality of guard arms connected to, and connecting, saidhub members, and adapted to span the periphery. of saidpow erwheel, and

a plurality of I guard. shoesiconnected respectively to said guard armsand projecting within the groove of the power wheel.

3. The combination with a bucket formed of a plurality of bowl sections,blade arms on said bowl sections, brace members extending from the bladearms of the bowl sections to the body portion of the bowl sections, arope guard, and means connecting said guard to certain of the bracemembers.

4. The combination of a bucket formed of a plurality of pivoted bowlsections, a plurality of blade arms rigidly secured to each of said bowlsections, means'for opening and closing said bowl sections, including apower wheel, a rope guard for said power Wheel, comprising a pluralityof hub members mounted on opposite sides of the power wheel, a pluralityof shoe-carrying arms connected to, and connecting, said hub members,and means whereby said rope guard is supportably connected to the bladearms of one only of the bowl sections.

5. The combination of a bucket provided with a plurality of bowlsections, blade arms on said bowl sections, means for opening andclosing the same including a power wheel, a rope guard for said powerwheel comprising a plurality of hub members mounted on opposite sides ofthe power wheel, a plurality of shoe carrying radiat ing arms on saidhub members, brace members extending from the blade arms of the bowlsections to the body portion of the bowl sections, and means connectingsaid guard to certain of said brace members.

6. The combination of a bucket provided with pivoted bowl sections,means for opening and closing the same, including a power wheel, a shafttherefor and operating chains, a rope guard for said power wheel,comprising a plurality of hub members each formed of a plurality ofsections separably secured together and mounted on opposite sides of thepower wheel betweenv said chains, a guard member connecting said hubmembers, and means securing said rope guard to one only of the bowlsections.

7 Ina bucket, the combination of a plurality of bowl sections, means foropening and closing the bowl sections, including a power wheel and anoperating rope therefor secured thereto, and a rope guard for said ropecomprising a plurality of guard arms spanning the periphery of the powerwheel, means for supporting said guard arms from opposite sides of saidwheel, and a plurality of relatively short friction shoes, havingarc-shaped inner surfaces mounted respectively on said arms, andprojecting within the peripheral groove of the power wheel.

8. In a bucket, the combination of a plurality of bowl sections, meansfor opening and closing the bowl sections, including a power. wheel andan operating rope therefor secured thereto, a rope guard for said ropecomprising a plurality of guard arms spanning the periphery of'the powerwheel, a plurality of friction shoes mounted respectively on saidguardarms and projecting within the peripheral groove of the powerwheel, means whereby "said rope guard is supported on opposite sides ofsaid wheel, and means whereby said guard is given limited rotarymovement about said wheel as the latter is vertically moved to close andopen the bucket.

' HERBERT s. ATKINSON.

Witnesses:

R. B. CAVANAGH, A. PAULING.

,(fiopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

